One of the traits that often characterize fruits of non-domesticated Cucurbita is lignified (hard) rinds. Fruit of domesticated Cucurbita can have either lignified or nonlignified (soft) rinds. Schaffer et al. (6) noted that many summer squash cultivars of C. pepo, which are usually consumed within 10 days post-anthesis, have lignified rinds at maturity. On the […]
Linda Wessel-Beaver
Cucurbita argyrosperma Sets Fruit in Fields where C. moschata is the Only Pollen Source
Cucurbit Genetics Cooperative Report 23:62-63 (article20) 2000 Linda Wessel-Beaver Dept. of Agronomy and Soils, University of Puerto Rico, P.O. Box 9030, Mayaguez, PR 00681-9030 Cucurbita argyrosperma Huber and C. moschata Duchense can often be found growing in close proximity, or even in the same fields in Mexico and Guatemala. While Whitaker and Knight (9) state […]
Evidence for the Center of Diversity of Cucurbita moschata in Colombia
Cucurbit Genetics Cooperative Report 23:54-55 (article 16) 2000 Linda Wessel-Beaver Dept. of Agronomy and Soils, University of Puerto Rico, P.O. Box 9030, Mayaguez, Puerto Rico Until recently, most researchers accepted southern Mexico-northern guatemala as the likely center of origin of C. moschata as proposed by Whitaker and Davis (5). However, others (1,2,6) have noted that […]
Screening for Silverleaf Resistance in Cucurbita Accessions
Cucurbit Genetics Cooperative Report 20:54-56 (article 24) 1997 Linda Wessel-Beaver Dept. of Agronomy and Soils, University of Puerto Rico, Mayaguez, PR 00681 U.S.A. During the past decade the silverleaf whitefly, Bemisia argentifolii Bellows and Perring (= Bemisia tabaci, ‘B’ strain), has become a serious pest of squash and pumpkins in the Caribbean Basin. Populations of […]
Powdery and Downy Mildew Resistance in Cucurbita moschata Accessions
Cucurbit Genetics Cooperative Report 16:73-74 (article 26) 1993 Linda Wessel-Beaver Dept. of Agronomy and Soils, College of Agricultural Sciences University of Puerto Rico, Mayaguez, PR 00681 Powdery mildew is a disease found wherever cucurbit crops are grown. Two organisms are reported as the causal agents of this disease: Erysiphe cichoraceatum DC ex. Merat and Sphaerotheca […]